/**
 * WCAG Contrast Calculation Utilities
 *
 * Provides functions to determine optimal contrasting colors (black or white)
 * for text on colored backgrounds using WCAG 2.1 standards.
 */
/**
 * Get optimal contrasting color (black or white) for text on a given background
 *
 * Uses the Color package's built-in WCAG contrast calculation to determine
 * which color (black or white) provides better contrast on the given background.
 *
 * @param backgroundColor - Background color to calculate contrast for
 * @returns Contrasting color (black or white)
 */
export declare function getContrastingColor(backgroundColor: string): string;